Oxalis oregana “Oregon Wood-sorrel” Oxalidaceae
with Polystichum munitum “Western Sword Fern” Dryopteridaceae
Olympic National Park, WA
June 5, 2013
Robert Niese
This is a common scene throughout the Olympic Peninsula where rainforest floors are literally carpeted with these two species. Both species are edible, but Oxalis is by far my favorite of the two. There’s nothing quite like munching on Oxalis straight from the trail while hiking through a PNW rainforest.
Gaillardia aristata “Blanketflower” Asteraceae
National Bison Range, MT
June 8, 2014
Robert Niese
Blanketflowers are a common native wildflower throughout the dry, open areas of the Pacific Northwest east of the Cascades. You can also find it as a cultivated plant in gardens around town.
Melanoplus bivittatus bivittatus “Two-striped Grasshopper” Acrididae
Missoula, MT
September 2, 2013
Robert Niese
The Two-striped Grasshopper can be found throughout North America and can be quite variable morphologically. In drier regions here in the PNW, M. bivittatus bivittatus tends to be a dull yellow-brown color with blueish legs. In wetter, coastal regions, M. bivittatus femoratus will be green with red legs. Throughout the Northwest however, these grasshoppers are abundant and often found in gardens and vacant lots around town.
Ochlodes sylvanoides “Woodland Skipper” Hesperiidae
Missoula, MT
September 2, 2013
Robert Niese
These little guys are pretty common around Missoula in the late summer when they complete their metamorphosis. Look for them in grassy areas throughout the Pacific Northwest feeding on Asteraceae flowers like these weedy asters.
Populus tremuloides “Quaking Aspen” Salicaceae
Council Grove State Park, MT
March 16, 2015
Robert Niese
We have several species of willows, aspens (well, one aspen), and poplars in the PNW that produce these adorable fuzzy flowers in the early spring. These compact “pussy-foot” catkins are very typical of willows (Salix), but Quaking Aspen produces a very similar inflorescence. The easiest way to tell the two apart is to look at the buds. In Aspen, you’ll see lots of overlapping bud scales while in willows, the buds are smooth and consist of a single, wrap-around scale.
Halictus (Seladonia) tripartitus “Sweat Bee” Halictidae
Missoula, MT
May 13, 2014
Robert Niese
Another species of small Sweat Bee in the genus Halictus. If you’re interested in attempting to identify these bees with a dichotomous key (there are only 10 species in the Northwest, so it’s not too difficult!), check this one out here. Once you learn more about these little guys, you start noticing them everywhere!
Andrena “Mining Bee” Andrenidae
on Ranunculus glaberrimus “Sagebrush Buttercup” Ranunculaceae
Council Grove State Park, MT
March 16, 2015
Robert Niese
Andrena is one of the world’s largest genera of bees. There are probably only a few people in all of North America who possess the specialized knowledge necessary to make a reliable species identification. Andrena bees are remarkably cold tolerant and are some of the first small bee species to frequent flowers in the spring, although this little guy was clearly struggling with the chilly morning air.
Sphecodes (arvensiformis) “Cuckoo Sweat Bee” Halictidae
on Lomatium “Biscuit Root” Apiaceae
Missoula, MT
May 13, 2014
Robert Niese
Sphecodes bees are cleptoparasitic, cuckoo-like bees that lay their eggs in the nests of other sweat bees.
Halictus ligatus “Sweat Bee” Halictidae on Aster (Asteraceae)
Missoula, MT
September 2, 2013
Robert Niese
Sweat Bees in the genus Halictus can be difficult to identify, but fortunately, as compared to other genera in our area (see Lasioglossum), there are relatively few species in the Northwest (10). If you’d like to take a shot at IDing your own photographs, check out this key to our species.
Halictus (Seladonia) tripartitus “Sweat Bee” Halictidae
on Balsamorhiza sagittata “Arrowleaf Balsamroot” Asteraceae
Missoula, MT
May 13, 2014
Robert Niese
Another species of small Sweat Bee in the genus Halictus. If you’re interested in attempting to identify these bees with a dichotomous key (there are only 10 species in the Northwest, so it’s not too difficult!), check this one out here. Once you learn more about these little guys, you start noticing them everywhere!
Northwest Naturalist 